Question 1

Which part of the forebrain is the size of a grape but is considered the master control center for emotion and many basic motives?
A)thalamus
B)hypothalamus
C)corpus callosum
D)cerebellum

Accepted Answer

The hypothalamus is the part of the forebrain that is the size of a grape but controls many basic motives such as hunger, thirst, and sex drive, as well as emotions such as fear and pleasure. The thalamus is a sensory relay center, the corpus callosum connects the two hemispheres of the brain, and the cerebellum is involved in motor coordination and balance, but not emotion or basic motives.

Question 2

Megan suffers from a phobia of kittens and cats.Even though she consciously understands that she does not have to be afraid of such small creatures,she still exhibits nervousness as she watches her daughter petting a neighbor's gentle cat.Which part of the limbic system causes this fear response that Megan does not understand?
A)hippocampus
B)thalamus
C)hypothalamus
D)amygdala

Accepted Answer

The amygdala is responsible for processing emotions, particularly fear and anxiety. In Megan's case, even though she is consciously aware that the cat cannot harm her, her amygdala is still producing a fear response.

Question 3

Which part of the brain is responsible for hunger,thirst,sex,body temperature,and hormone secretion?
A)reticular formation
B)pons
C)hypothalamus
D)hippocampus

Accepted Answer

The hypothalamus is responsible for regulating the body's internal environment, including hunger, thirst, sex, body temperature, and hormone secretion. It helps maintain homeostasis in the body.

Question 4

Two structures that are part of the limbic system are the
A)medulla and pons.
B)reticular formation and cerebellum.
C)amygdala and hippocampus.
D)corpus callosum and brainstem.

Accepted Answer

The limbic system is a complex set of structures that includes the amygdala and hippocampus, among others. These structures are involved in emotional regulation, motivation, and memory. The medulla and pons (choice A) are part of the brainstem, which controls basic life functions such as breathing and heart rate. The reticular formation and cerebellum (choice B) are also part of the brainstem and cerebellum, respectively, and are involved in motor control and attention. The corpus callosum (choice D) is a bundle of nerve fibers that connects the two hemispheres of the brain. While it is important for communication between the hemispheres, it is not considered part of the limbic system.

Question 5

Injury to even small areas of which brain part can cause deafness,blindness,or loss of any other sense,except smell?
A)thalamus
B)hypothalamus
C)hippocampus
D)amygdala

Accepted Answer

The thalamus acts as a relay center for sensory information traveling to the cortex. It processes information for all senses except smell. Injury to even small areas of the thalamus can cause deafness, blindness, or loss of any other sense.

Question 6

Which brain area within the forebrain has a major role in producing emotions and motivating behaviors,including rage,fear,sexual response,and laughter?
A)somatosensory cortex
B)endocrine system
C)limbic system
D)reticular activating system

Accepted Answer

The limbic system, located in the forebrain, is involved in producing emotions and motivating behaviors, including rage, fear, sexual response, and laughter. It includes structures such as the amygdala, hippocampus, and hypothalamus. The somatosensory cortex is involved in processing sensory information, the endocrine system is responsible for hormone regulation, and the reticular activating system is involved in regulating arousal and attention.

Question 7

A medical student destroys part of a rat's brain so that it later develops a tremendous appetite and continues to eat long after it has acquired ample nutrition.What part of the brain has been damaged?
A)thalamus
B)hypothalamus
C)hippocampus
D)amygdala

Accepted Answer

The hypothalamus plays a key role in regulating hunger, thirst, and other basic survival behaviors. Damage to the ventromedial area of the hypothalamus has been shown to lead to hyperphagia (excessive eating) in animals.

Question 8

Which brain area was the earliest layer of the forebrain to develop during evolution and helps organize basic survival responses in lower animals,such as feeding,fleeing,fighting,and reproduction?
A)somatosensory cortex
B)endocrine
C)limbic system
D)reticular activating system

Accepted Answer

The limbic system is the earliest layer of the forebrain to develop during evolution and helps organize basic survival responses in lower animals, such as feeding, fleeing, fighting, and reproduction. The somatosensory cortex is responsible for processing sensory information, the endocrine system is a network of glands that produces and releases hormones into the bloodstream, and the reticular activating system is a network of neurons important for arousal and attention.

Question 9

Which of the following is NOT controlled by the hypothalamus?
A)sex
B)eating and drinking
C)temperature control
D)posture

Accepted Answer

The hypothalamus is involved in regulating many bodily functions, including sex, eating and drinking, and temperature control. However, posture is primarily controlled by the cerebellum and brain stem.

Question 10

The hypothalamus is a grape-sized structure in the forebrain that
A)controls posture,muscle tone,and coordination and stores skill memories.
B)acts as a final switching station for most incoming sensory information on their way to the cortex.
C)is associated with attention,alertness,and some reflexes,such as coughing,sneezing,and vomiting.
D)is involved in temperature control,hormone release,emotions,and motives,such as hunger and thirst.

Accepted Answer

The hypothalamus is involved in temperature control, hormone release, emotions, and motives such as hunger and thirst.

Question 11

In situations in which true danger exists,such as in military combat,the rapid response of which part of the limbic system may aid survival?
A)hippocampus
B)hypothalamus
C)thalamus
D)amygdala

Accepted Answer

The amygdala is responsible for the rapid processing of emotions and the activation of the fight or flight response in dangerous situations. In combat situations, the rapid response facilitated by the amygdala can aid in survival.

Question 12

A researcher places an electrode in a cat's limbic system,which he activates.The cat suddenly jumps up,runs to the corner,and prepares to attack.What part of the limbic system was most likely stimulated?
A)hippocampus
B)thalamus
C)hypothalamus
D)amygdala

Accepted Answer

The amygdala is responsible for emotional processing and the regulation of fear responses. Stimulation of the amygdala can trigger aggressive behaviors in animals.

Question 13

Which part of the forebrain is basically a "crossroads" that connects many areas of the brain and is the last place where many behaviors are organized or "decided on" before these messages leave the brain and cause the body to react?
A)amygdala
B)pons
C)hypothalamus
D)hippocampus

Accepted Answer

The hypothalamus is known as the "crossroads" of the brain because it connects to many areas of the brain and is involved in regulating a wide range of behaviors, such as hunger, thirst, body temperature, and sexual behavior. It is also involved in the regulation of the autonomic nervous system and the endocrine system, which control many processes in the body. The hypothalamus is often considered the "command center" for many of the body's basic functions.

Question 14

The hypothalamus,the hippocampus,the amygdala,and parts of the thalamus make up the _______ system.
A)somatosensory
B)endocrine
C)limbic
D)reticular activating

Accepted Answer

The hypothalamus, hippocampus, amygdala, and parts of the thalamus make up the limbic system. This system plays a critical role in regulating emotions, memory formation, and basic survival instincts like hunger, thirst, and sexual behavior. The somatosensory system is responsible for processing sensory information from the body, the endocrine system is responsible for the secretion of hormones, and the reticular activating system plays a role in regulating consciousness and wakefulness.

Question 15

The limbic system includes the
A)medulla,hypothalamus,and thalamus.
B)medulla,cerebellum,pons,and reticular formation.
C)reticular formation,hypothalamus,thalamus,and parts of the cerebellum.
D)hypothalamus,amygdala,hippocampus,and parts of the thalamus.

Accepted Answer

The limbic system is a group of structures in the brain that are involved in emotions, motivation, and memory. The hypothalamus plays a critical role in regulating bodily functions, such as hunger, thirst, and temperature. The amygdala is involved in emotions, particularly fear and aggression, while the hippocampus is important in the formation and retrieval of memories. Parts of the thalamus are also included in the limbic system. Thus, the best answer is D.

Question 16

Which part of the limbic system explains why people who suffer from phobias and disabling anxiety often feel afraid without knowing why?
A)amygdala
B)hippocampus
C)thalamus
D)hypothalamus

Accepted Answer

The amygdala is responsible for processing emotions, including fear. It can trigger a fear response even if there is no apparent reason for the fear or anxiety.

Question 17

The limbic system is responsible for
A)the control of rage,fear,sex,and laughter.
B)language function.
C)heartbeat and breathing regulation.
D)auditory and visual processing.

Accepted Answer

The limbic system is a group of structures in the brain that are responsible for regulating emotions, including rage, fear, sex, and laughter. It is not responsible for language function, heartbeat and breathing regulation, or auditory and visual processing.

Question 18

Which part of the limbic system provides a primitive "quick pathway" to the cortex when we are startled,so that we are able to react to dangerous stimuli before we fully know what is going on?
A)hippocampus.
B)amygdala.
C)hypothalamus.
D)thalamus.

Accepted Answer

The amygdala is responsible for processing emotions, particularly fear and aggression, and plays a crucial role in the body's response to danger. It provides a quick pathway to the cortex, allowing us to react to potential threats before we have even fully processed the situation.

Question 19

After a stroke,Jarmaine began having periodic trouble with his hearing,then he began experiencing visual problems,and sometimes even numbness in different parts of his body.Most recently,he is able to smell his wife's cooking and anticipate the flavor of his favorite foods,but alas,the food often does not have any taste.Which part of his brain is malfunctioning?
A)hypothalamus
B)reticular formation
C)hippocampus
D)thalamus

Accepted Answer

The thalamus is responsible for relaying sensory information (such as hearing, vision, and touch) to the cerebral cortex. The symptoms described in the question suggest dysfunction in this area, as Jarmaine is experiencing problems with hearing and vision, and numbness in different parts of his body. The loss of taste could also be related to dysfunction in the thalamus, as it is involved in processing taste information.

Question 20

You are walking down a dark alley with several packages.Behind you,you hear a door open and close suddenly,and you immediately dive behind the nearest trash container.The part of the forebrain mainly responsible for your reaction is the
A)hippocampus.
B)medulla.
C)cerebrum.
D)amygdala.

Accepted Answer

The amygdala is primarily responsible for processing emotions and triggering the fight or flight response in potentially threatening situations. In this scenario, the sudden noise behind you could be perceived as a potential threat, triggering the amygdala to initiate the quick reaction of diving behind cover.

Quiz 11: Brain and Behavior: Sub-Cortex and Endocrine System

Which part of the forebrain is the size of a grape but is considered the master control center for emotion and many basic motives?

Which part of the brain is responsible for hunger,thirst,sex,body temperature,and hormone secretion?

Two structures that are part of the limbic system are the

Injury to even small areas of which brain part can cause deafness,blindness,or loss of any other sense,except smell?

Which brain area within the forebrain has a major role in producing emotions and motivating behaviors,including rage,fear,sexual response,and laughter?

A medical student destroys part of a rat's brain so that it later develops a tremendous appetite and continues to eat long after it has acquired ample nutrition.What part of the brain has been damaged?

Which brain area was the earliest layer of the forebrain to develop during evolution and helps organize basic survival responses in lower animals,such as feeding,fleeing,fighting,and reproduction?

Which of the following is NOT controlled by the hypothalamus?

The hypothalamus is a grape-sized structure in the forebrain that

In situations in which true danger exists,such as in military combat,the rapid response of which part of the limbic system may aid survival?

A researcher places an electrode in a cat's limbic system,which he activates.The cat suddenly jumps up,runs to the corner,and prepares to attack.What part of the limbic system was most likely stimulated?

Which part of the forebrain is basically a "crossroads" that connects many areas of the brain and is the last place where many behaviors are organized or "decided on" before these messages leave the brain and cause the body to react?

The hypothalamus,the hippocampus,the amygdala,and parts of the thalamus make up the _______ system.

The limbic system includes the

Which part of the limbic system explains why people who suffer from phobias and disabling anxiety often feel afraid without knowing why?

The limbic system is responsible for

Which part of the limbic system provides a primitive "quick pathway" to the cortex when we are startled,so that we are able to react to dangerous stimuli before we fully know what is going on?

You are walking down a dark alley with several packages.Behind you,you hear a door open and close suddenly,and you immediately dive behind the nearest trash container.The part of the forebrain mainly responsible for your reaction is the